CPU heat sink fastener

Abstract

A CPU heat sink fastener for fastening a CPU heat sink to a CPU mount to hold down a CPU between said CPU heat sink and said CPU mount, including a pressure bar having a mounting hole at one end fastened to a first rod at one side of the CPU mount, an actuating lever pivoted to one end of the pressure bar, and a clamping bar pivoted to the actuating lever and having a mounting hole fastened to a second rod at an opposite side of the CPU mount, wherein the CPU heat sink fastener is secured to the CPU mount to hold down the CPU heat sink and the CPU when the actuating lever is turned to one side; the CPU heat sink fastener is released from the CPU mount when the actuating lever is turned to an opposite side.

I claim: 
     
       1. A CPU heat sink and fastener for a CPU mount having first and second opposite sides, comprising: a) a heat sink having a plurality of upwardly extending heat dissipating elements having distal ends, said elements extending in a width direction of the sink to form a row; and   b) a fastener engaging the CPU mount and the heat sink and fastening the heat sink to the CPU mount and comprising: i. an elongated pressure bar extending in the width direction of the sink and having a width greater than its thickness, the pressure bar having a first end forming a first means attaching the first end to the first side of the CPU mount, and a second end;   ii. a clamping bar having second engagement means attaching the clamping bar to the second side of the CPU mount;   iii. an actuating lever pivotally connected to the second end of the pressure bar and to the clamping bar, so as to be movable between an open position and a locking position wherein the pressure bar urges the heat sink into contact with the CPU mount; and   iv. a handhold extending from the actuating lever so as to move therewith between the open and locking positions such that the handhold extends upwardly beyond the distal ends of the heat dissipating elements when the actuating lever is in the locked position.     
     
     
       2. The CPU heat sink and fastener of claim 1 wherein the first engagement means comprises: a. a rod extending from the first side of the CPU mount; and,   b. a mounting hold formed in the first end of the pressure bar configured to engage the rod.   
     
     
       3. The CPU heat sink and fastener of claim 1 wherein the second engagement means comprises: a. a rod extending from the second side of the CPU mount; and,   b. a mounting hole formed in the clamping bar configured to engage the rod.   
     
     
       4. The CPU heat sink and fastener of claim 1 wherein the second engagement means comprises: a. a rod extending from the second side of the CPU mount; and   b. a hook on the clamping bar configured to engage the rod.